Aquesta línia de recerca té com a objectiu estudiar la dinàmica de règims preturbulents o de turbulència plenament desenvolupada. Per extensió, s'estudien problemes associats amb la dinàmica no lineal d'ones, sistemes complexos, formació d'estructures dissipatives (patterns), etc. La major part dels problemes objecte d'estudi corresponen a sistemes d'interès geofísic o de recerca bàsica, és a dir, oceanografia, dinàmica atmosfèrica, dinàmica mediambiental, però també són objecte d'estudi alguns models matemàtics d'interès físic o biològic susceptibles de propagar ones, fronts, polsos, defectes, etc. Com a exemple de problemes en estudi podem esmentar la convecció tèrmica, la turbulència en fluids estratificats, els sistemes en rotació, la dinàmica de mescles, l'arrossegament de sediments, els corrents de gravetat, etc. Quant a les tècniques que s'utilitzen, en el camp de la teoria es combina la simulació numèrica directa de processos amb tècniques analítiques de reducció a formes normals, equacions d'amplitud, dinàmica caòtica, etc. En el terreny experimental, la tècnica més emprada és el tractament digital d'imatges de fluxos obtinguts en experiments de laboratori.

Pàgina web del grup de recerca

Recent Submissions

  • Influence of meteorological phenomena on worldwide aircraft accidents in the period 1967-2010 

    Mazón Bueso, Jordi; Rojas Gregorio, José Ignacio; Lozano, Miguel; Pino González, David; Prats Menéndez, Xavier; Miglietta, M.M. (2017-12-01)
    Article
    Restricted access - publisher's policy
    Based on the information available in databases from relevant national and international organizations from 1967 to 2010, an Aviation Weather Accidents Database (AWAD) was built. According to the AWAD, the weather is ...
  • A new shoreline instability mechanism related to high-angle waves 

    Falqués Serra, Albert; Kakeh Burgada, Nabil; Calvete Manrique, Daniel (2017)
    Conference report
    Open Access
    A new shoreline instability triggered by high-angle waves and leading to sand wave formation is investigated. In contrast with the well-known high angle wave instability, which involves both the surf and shoaling zones and ...
  • Formation and destruction of shoreline sand waves: observations and modelling 

    Arriaga García, Jaime Alonso; Falqués Serra, Albert; Ribas Prats, Francesca; Crews, Eddie (2017)
    Conference report
    Open Access
  • Characteristics and dynamics of crescentic bar events in an open, tideless beach 

    Swart, Rinse Leendert de; Ribas Prats, Francesca; Ruessink, Gerben; Simarro, Gonzalo; Guillén Aranda, Jorge (2017)
    Conference report
    Open Access
    Crescentic bar events at Castelldefels beach (NW Mediterranean) have been characterised using a 4.25 years dataset (October 2010-December 2014) of time-exposure video images. Crescentic bars are observed during 41% of ...
  • Formation and destruction events of shoreline sand waves 

    Arriaga García, Jaime Alonso; Falqués Serra, Albert; Ribas Prats, Francesca (2017)
    Conference report
    Open Access
  • Cold outbreaks from Mistral wind in the western mediterranean basin 

    Mazón Bueso, Jordi; Pino González, David (2017)
    Conference report
    Open Access
    Cold outbreaks over the western Mediterranean basin (WMB) associated to northern synoptic flows are investigated. Cold air entering into this region usually comes from the Gulf of Lion and is associated to synoptic northwesterly ...
  • Effect of a positive sea surface temperature anomaly on a Mediterranean tornadic supercell 

    Miglietta, M.M.; Mazón Bueso, Jordi; Motola, Vicenzo; Passini, Antonello (Macmillan Publishers, 2017-10-09)
    Article
    Open Access
    Extreme events represent a topic of paramount importance and a challenge for modelling investigations. Due to the need of high-resolution models, the study of severe localized convective phenomena is even more critical, ...
  • ULISES: an open source code for extrinsic calibrations and planview generations in coastal video monitoring systems 

    Simarro, Gonzalo; Ribas Prats, Francesca; Alvarez, Amaya; Guillén Aranda, Jorge; Chic, Oscar; Orfila, Alejandro (2017-09-01)
    Article
    Restricted access - publisher's policy
    Video monitoring systems have become a powerful and low-cost tool in coastal studies. Extrinsic calibration of the cameras is compulsory to get quantitative information from the images. This paper presents an Open Source ...
  • Low energy transverse sand bars at el Trabucador beach, Ebro delta: a preliminary study 

    Mujal Colilles, Anna; Grifoll Colls, Manel; Falqués Serra, Albert (2017)
    Conference report
    Open Access
    The complex rhythmic morphology of the inner side of the Trabucador barrier beach is investigated. This system fea-tures transverse bars along with shoreline undulations. From visual inspection, the typical spacing between ...
  • Numerical simulations of a tornadic supercell over the Mediterranean 

    Mazón Bueso, Jordi; Miglietta, M.M.; Rotunno, Richard (2017-03-07)
    Article
    Restricted access - publisher's policy
    On 28 November 2012, a multivortex EF3 tornado occurred in southeastern Italy causing one fatality and estimated damage of 60 million euros. At approximately 1050 LT (0950 UTC), this tornado, which initially formed in ...
  • An idealised study for the long term evolution of crescentic bars 

    Chen, W.L.; Dodd, Nicholas; Tiessen, M.C.H.; Calvete Manrique, Daniel (2018-01-01)
    Article
    Open Access
    © 2017 Elsevier Ltd. An idealised study that identifies the mechanisms in the long term evolution of crescentic bar systems in nature is presented. Growth to finite amplitude (i.e., equilibration, sometimes referred to as ...
  • Extensional channel flow revisited: a dynamical systems perspective 

    Marqués Truyol, Francisco; Meseguer Serrano, Álvaro; Mellibovsky Elstein, Fernando; Weidman, Patrick (2017-06-07)
    Article
    Open Access
    Extensional self-similar flows in a channel are explored numerically for arbitrary stretching–shrinking rates of the confining parallel walls. The present analysis embraces time integrations, and continuations of steady ...

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